Xcode6.1使用QRZBarSDK

在libqrencode中,QRCodeGenerator类中一片红啊,框架导入的都正确,使用Xcode5.1没有任何问题,但是添加到Xcode6中,就是一坨红啊

#import "QRCodeGenerator.h"
#import "qrencode.h"

enum {
qr_margin = 3
};

@implementation QRCodeGenerator

• (void)drawQRCode:(QRcode *)code context:(CGContextRef)ctx size:(CGFloat)size {
  unsigned char *data = 0;
  int width;
  data = code->data;
  width = code->width;
  float zoom = (double)size / (code->width + 2.0 * qr_margin);
  CGRect rectDraw = CGRectMake(0, 0, zoom, zoom);

  // draw
  CGContextSetFillColor(ctx, CGColorGetComponents([UIColor blackColor].CGColor));
  for(int i = 0; i < width; ++i)
  {
  for(int j = 0; j < width; ++j)
  {
  if(*data & 1) {
  rectDraw.origin = CGPointMake((j + qr_margin) * zoom,(i + qr_margin) * zoom);
  CGContextAddRect(ctx, rectDraw);
  }
  ++data;
  }
  }
  CGContextFillPath(ctx);
  }

• (UIImage *)qrImageForString:(NSString *)string imageSize:(CGFloat)size {
  if (![string length]) {
  return nil;
  }

  QRcode *code = QRcode_encodeString([string UTF8String], 0, QR_ECLEVEL_L, QR_MODE_8, 1);
  if (!code)
  {
  return nil;
  }

  // create context
  CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
  CGContextRef ctx = CGBitmapContextCreate(0, size, size, 8, size * 4, colorSpace, kCGImageAlphaPremultipliedLast);

  CGAffineTransform translateTransform = CGAffineTransformMakeTranslation(0, -size);
  CGAffineTransform scaleTransform = CGAffineTransformMakeScale(1, -1);
  CGContextConcatCTM(ctx, CGAffineTransformConcat(translateTransform, scaleTransform));

  // draw QR on this context
  
  [QRCodeGenerator drawQRCode:code context:ctx size:size];

  // get image
  CGImageRef qrCGImage = CGBitmapContextCreateImage(ctx);
  UIImage * qrImage = [UIImage imageWithCGImage:qrCGImage];

  // some releases
  CGContextRelease(ctx);
  CGImageRelease(qrCGImage);
  CGColorSpaceRelease(colorSpace);
  QRcode_free(code);

  return qrImage;
  }

@end